Attachment fob window sashes



Peb. 2551924. Re. 15,779 H. c. 'rRos-r AUTONA'I'IC INTERLOCK-ING ATTACHMENT FOR WINDOW SASHES originalrned April 17. .922 2 sheets-sheet l 2 y A Jaw/yu?.

Gf i AWORNEYS Feb. 26, i924'. 1 s Re. 15,779 l H. c. TRosT AUTOMATIC INTERLOCKING ATTACHMENTFOR WINDOW SAS'HES original Filed Api-i1 17. 1922 2' sheets-snm. 2

G. /dzf INVENTOR TTORNEYS I n Ressued Feb. 26, 1924.

UNITED STATES HENRY C. TROST, OF EL PASO, TEXAS.

AUTOMATIC INTERLOCKING ATTACHMENT FOR WINDOW SASHES.

Original No. 1,489,585, dated December 19,1922, Serial No. 553,711, 1ed April 17, 1922. Application for reissue led April 25, 1923. Serial No. 634,632. Y

To all whom it may concern Be it known that I, HENRY C. TRos'T, a citizen of the United States, residing at El Paso, in the county of El Paso, State of 5 Texas, have invented certain'new and useful Improvements in Automatic Interlockin Attachments for Window Sashes; and I glo hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in automatic interlocking attachmentsv for use in connecting sliding window sashe's, or the be 0W or above, or both below and above,

drawin the interlocked sashes.

M invention will be more fully understood after reference to the accompanying in which like parts are indicated by simi ar reference symbols throughout the several views, and in which Figure 1 is a view of the two sashes with the window closed;

30 Figure 2 is a section of a portion of the device shown in Fig. 1 along the line 2-3 of said figure and looking in the direction of the arrows, the framework ofthe window being omitted for thesake of clearness lin the drawings, and the parts being shown on a larger scale;

Figure 3 is a similar view to Fig. 2, ei;- cept that the two sashes have been moved relative to each other, and are in the interlocked position, but both may now be moved by pressure applied to either one;

Figure 4 is a view of the parts shown in Flg. 3, as seen from the right of said figure;

Figure 5 is a similar view to Fig. 4, but shows the parts in the position just before the sashes are interlocked;

Figures 6 and 7 are detail views showing on a larger scale the oppositely-disposed trip plates which are used in my invention;

Figure B is a detail showing one of the pendulum locks and the strip carrying' the same used in my invention; K l

Figure 9 is a view of the device shown in .my invention; 'and Figure 12 shows a modified form of pendulum lock which may be used in connection with the trip plate shown in Figs. 1 to 11 inclusive.

A represents the window Vframewhich may be of the usual or'p'referred construction provided with the usual. guide strip or separating strip a, which is mounted between the .sashes, and is shown only in Figs. 4 and 5. This separating strip is a common expedient with window frames, and is not shown in Figs. 2, 3 and 10 in order tomore clearly bring out theother parts.

B represents the lower sash of the window, and C the upper sash of the window which is mounted to'slide vertically in the usual way.

As thus described the parts are all old and well .known in the art, and it is my purpose to apply the inventionto windows and window frames of standard construction without requiring any alterations in 'the manufacture of the same by the builder or contractor. My invention is more especially lintended to provide the removable attachment or attachments which will now be described. 4

In Figs. 1 to 5 I have shown mounted on opposite sides of the upper window sash C the reversely-disposed tripplates D and D which are adapted' to be respectively engaged the lugs F, carried by the pendulum locks F, which are pivoted to the strips E, vattached to the lower window sash.

As will be shown later, it is immaterial whether the trip'plates be attached to4 the upper sash and the pendulum lock to the lower sash, or whether the contrary arrangement be made. l

Referring irst to Figs. 1 to 9, the trip` plates D and D are each provided with a base plate D2 adapted to beconnected by aoV meansgoffsuitableserews G passingV through to therupper sash frame. These screws pass through perforations d in the base plate D2.

This base plate is provided with the out-y wardly-projecting portions D3 and'D. The projection D3v is provided with avv wedgeshaped lower portion d', having the cam faced? terminating inthe. hookv da, which hook forms the outer wallof theV pocket d4, which pocket is adjacent to the rib d5 whose endfis preferably. roundedV somewhat as at d?. The oppositely-disposedprojecting portion` Dxis provided with similar, but reverselyfdisposedl parts. d, 1.2, d and d, and with a rib d, preferably rounded as at d1". Between these ribs d and d is apassage or channelD?.

The construction of the twoy trip plates Dan'd D isv the same, except that the parts are reversed asshown in Figs. Gand 7. The locking arrangement coacting with the. trip plate. comprises themetal strip E which is provided with a tail e, perforated, as. at e', to receive the'screws Gr by means of which the strips E may be fastened-tothe lower sash ofthe window. The strip Eis bent outwards, as at e2, and is provided at .itsv upper endV with a loop esthrough which passes the. bolt. e?, to which the stem of the pendulum lock E isV pivoted.V This lock carries the locknglug F which is shown in Figs.` 1 to as hexagonal in shape, but this locking lng may be of any cross section, for instance of the elliptical cross section shown in Fig. 12;.

The transverse thickness of the lockingarrangement is `such that the coacting parts canbe placed in the normal clearance space between'the two` sashes as they slide up or down.

'The operation of the .device as illustrated inFi'gs; V1 to l() is asy follows Suppose the two sashes to be in the position assumed: when thewindow is closed, which is. the position shown in Figs. 1 and 2'; new it will be obvious thatthe coacting locking members are. then entirely apart, and do not interfere in anyv way with the normalv closing tight ofthe window. Now if the lower sash be raised, as. in they ordinary. way, the lockinglugs F on opposite sides ofthelower sash will strike the cam faces`V dion. the two trip` plates D- and.` D', andthe pendulumy locks will be. swung to the outward. position, as indicated tothe right ofFig. 9..' Assoon as .thelugs F.lpass the corresponding hooksds, thefpendulurn will swing back against thek rib d and a slight downward movement of theL lower sash, will lock` the. two together. By.. then down the lewer-V sash, the vtwo sashes may be moved to the desired-V position with airl opening above the upper. sash and i below4 the lower sash.

If-:tdadsiredtomake the air opening the upper edge of theicam faces d. At this time the pendulum lugs will'tend to swing back to the vertical position, and a slight downward movement of the lower sash will cause the pendulum lugs to. swing inwards, as indicated-to the left of Fig. 9, andthese lugs will pass the hooks d. andv will swing into the pockets. dl". At thistime an up ward movement of the lower sash will tend to close the gapat-the top of the two. sashes, but willleave alarge air space below the lowerr sash.

If it is desired'to close thewindow entirely, push up on` the lower. Sashy until. the upper sash has reached its, highest position, then pull down the lower sash again and the pendulum. lock willautomatically swing clear, ridingdown on the ,ribsJ d, past the channel D", and the .lower sashv mayV bev completely closed;

If the .upper sashis at any time in the-desired position, the lower sashmay be` closed without disturbingrthe. upper sashby, pushing on the same until the` lugsF register with the. passages D?. At this. time these lugs will swing into said passages, and'pulling down on thelower sash willfsimply permit the lug F to pass through saidpassages without disturbing the upper Sash, andthe lower sash may be returned to the closed position.

Thus it` will be seenthat the lowersash may be moved independently of the. upper sash, or the two sashcs may bemoved together as desired, without necessitating the operator touching the.. upper sash at all. This is a great` convenience. especially with high windows, or short persons.

In the construction of the device, shown in Figs. 1 to 5, the interlocking parts are shown as mounted on the inside ofthewindow, but to. meet the .capricious requirements of the userit may be preferred` tomounttthe same on the outside of` the window, inwhch case the parts would be reversed: asshown in Fig. 10; that. is, thetripplates would be Aattached to thek lower sashand the. pendulum lock would be attached to the upperf sash, the partsVY otherwise being thesame as. already described. i

While I have shown two sets ofinterlock- It will be noted that the trip plates shown in detail in Figs. 6 and 7 are of the same construction, but become rights and lefts when one is turned upside down relative to the other. f

In the modification shown in Fig. 11 a slightly different form of trip plate is used, 'in which the cam faces d and d are rounded, and the pockets d and d are of curved cross section, while the ribs d and d are straight; and iny coaction with such trip plates I provide the locking pendulum of the form shown in Fig. 12, 1n which the locking pendulum F2 is provided with A15 elliptical lugs F. In Figs. 11 and 12 I have shown only one of the trip plates and corresponding locking pendulums. The `other plates and pendulums would be obviously reversely disposed.

The device constructed in this way will operate somewhat more smoothly than if the locking lugs were angular in cross section as shown in Fig. 9.

With the arrangement shown in Figs. 11 and 12 the parts may be assembled and will operate in the same way as the similar parts shown in Figs. 1 to 10.

While I have shown the invention in its preferred form or forms, it will be obvious that various modifications might be made in the construction, combination and arrangement of parts which could be used without departing from the spirit of my invention; and I do not mean to limit the invention to such details except as particularly pointed out in the claims.

Havingthus described my invention what I claim and desire to secure by Letters Patent of the United States is:

1. An interlocking attachment for window sashes comprising two coacting parts, a trip plate fastened to one sash and a pendulum lock connected to the other sash, the said trip plate being provided with raised portions separated by an inclined channel, said raised portions being provided with wedge faces, and pockets, and said pendulum lock being provided with a laterally projecting lug adapted to` engage said wedge faces, and to project into said pockets and to pass through said inclined passage, substantially as described.

2. An interlocking attachment for window sashes comprising two sets of coacting parts, each set including a trip plate fastened to one sash, and a pendulum lock connected to the other sash, the sets being arranged in pairs on opposite sides of the window, the said trip plates being provided with raised portions separated by an inclined channel, said raised portions being provided with wedge faces and pockets, and said pendulum locks being each provided with a laterally projecting lug adapted to engage said wedge faces, and to project into said pockets, and to pass through said inclined passages, substantially as described. y l

Y 3. An interlocking attachment for window sashes comprising two coacting parts, a trip plate fastened to one sash and a pendulum lock connected to the other sash, the saidv trip plate being provided with raised portions separated by an inclined channel, said raised portions being dprovided with Wedge faces and pockets, an said pendulum lock comprising a strip secured to the other sash and a pendulum suspended from said strip provided with a laterally projectin lug adapted to enga e said wedge faces, an to pro'ect into sai pockets, and to ass throug said inclined passage, substantially as described.

4. An interlocking attachment for window sashes comprising two sets of coact-ing parts, each set including a trip late fastened to one sash, and a pendulum ock connected to the other sash, the sets being arranged in pairs on opposite sides of the window, the said trip plates being provided with raised portions'separated by an inclined channel, said raised portions `being provided with wedge faces and pockets, and said pendulum lock comprising a strip secured to the other sash and a pendulum suspended from said strip each pendulum being provided with a laterally projecting lug adapted to engage said wedge faces, and to project into said pockets, and to pass through said inclined passa s, substantially as described.

5. n interlocking attachment for window sashes comprising two coacting parts, a trip plate fastened to one sash and a pendulum lock connected to the other sash, the said trip plate being provided with a raised portion provided with a wedge face, and a pocket, and said pendulum lock being provided with a laterally projecting lug adapted to engage said wedge face, and toproject into said pocket, substantially as described.

6. An interlocking attachment for Window sashes comprising two sets of coacting parts, each set including a trip plate fastened to one sash, and a pendulum lock connected to the other sash, the sets being arranged in pairs on opposite sides of the window, each of said trip plates being provided with a raised portion havin a wedge face, and a pocket above same, an said pendulum locks being` each provided with a laterally projecting lug adapted to eng-age said wedge faces, and to project into said pockets, substantially as described.

7. An interlocking attachment for window-sashes comprising two co-acting parts, one a trip-plate fastened to one sash and the other a locking member connected to the other sash, said trip-plate being provided with raised portions separated by an inclined channel, said raised portions being faces undl sadlthrust-shoulders and to pass thxl A saidinelined passage. v

9.y n.` interlocking attachmenty for Windowsashes oomprisingtwo (3o-acting, parts, one a trip-plate fastened to one sashviand the other a, pendulum1 leeky connected to the other sash, Suidv trip-plate-being provided with a raisedlportion' having a cam face andV anadjaent thrustfshoulder, Said pendulum lock-'being provided with i a; laterallyfprojeeting; lugqdapted to Yengtgge saidf- Wedge` face and automatically swing over andi engage said thrust-shoulder.

' In testimony whereof I hereunto ax rny 30 signature this 14th day of Februar 1923;

. HENRY C. T V0ST. 1 

